Ohmite 40J225 Equivalent & Substitute Parts

Part Overview

The Ohmite 40J225 is a 225 Ohm, 5% tolerance, 10W axial wirewound through-hole resistor from the Ohmicone® 40 series. This component is currently active in production and maintains 676 pieces in new original stock inventory. The 40J225 is classified as RoHS non-compliant, which may necessitate identification of compliant alternatives for applications subject to RoHS regulations or procurement requirements mandating RoHS3 compliance.

Substiute Parts

40J225

OhmiteIn Stock: 76340J225 Datasheet

Current PartRFQ

40J225E

OhmiteIn Stock: 70240J225E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 40J225E qualifies as a parametric equivalent to the 40J225 based on identical electrical and mechanical specifications: 225 Ohm resistance, ±5% tolerance, 10W power rating, wirewound composition, axial package configuration, ±20ppm/°C temperature coefficient, and matching physical dimensions of 0.406" Dia x 1.902" L (10.30mm x 48.30mm).

The primary distinction between these parts is regulatory compliance status. The 40J225E is RoHS3 compliant, whereas the 40J225 is RoHS non-compliant. Both parts share identical electrical performance characteristics and mechanical form factors, making them functionally interchangeable in applications where component-level substitution is required.

Parameter Comparison

Engineering Selection Recommendations

Selection between the 40J225 and 40J225E should be determined by regulatory and procurement requirements:

The 40J225E is the appropriate selection for applications subject to RoHS3 compliance mandates, including EU market applications and procurement specifications requiring RoHS certification. Both parts maintain active production status and equivalent inventory levels, ensuring supply continuity.

The 40J225 remains suitable for applications without RoHS compliance requirements or legacy systems where non-compliant components are explicitly permitted.

Both parts are classified under ECCN EAR99 and HTSUS 8533.21.0080, with identical REACH status (REACH Unaffected), confirming equivalent regulatory treatment outside RoHS scope.

Frequently Asked Questions (FAQ)

Q: Are the 40J225 and 40J225E electrically identical?

A: Yes. Both parts specify 225 Ohm resistance, ±5% tolerance, 10W power rating, ±20ppm/°C temperature coefficient, and wirewound composition. Electrical performance is equivalent.

Q: What is the physical difference between these parts?

A: There is no physical difference. Both parts share identical axial package dimensions of 0.406" Dia x 1.902" L (10.30mm x 48.30mm) and two terminations. They are mechanically interchangeable.

Q: Why does the 40J225E have different packaging designation?

A: The 40J225E is supplied in bulk packaging, while the 40J225 uses standard packaging. This is a distribution format difference only and does not affect component performance or mechanical compatibility.

Q: Can I substitute the 40J225E for the 40J225 in existing designs?

A: Yes, provided your application permits RoHS3 compliant components. The electrical and mechanical specifications are identical, ensuring direct substitution without design modification.

Q: Which part should I select for new designs?

A: For new designs, the 40J225E is recommended if RoHS3 compliance is required by your application or procurement standards. Both parts are in active production with stable inventory levels.

Q: Are there any compliance differences I should consider?

A: The 40J225E is RoHS3 compliant; the 40J225 is not. Both are REACH Unaffected and classified as EAR99. Compliance selection depends on your specific regulatory requirements.